CVE-2026-61818

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Source
https://cve.org/CVERecord?id=CVE-2026-61818
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61818.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-61818
Aliases
  • GHSA-fm3m-9fh7-mqfc
Downstream
Published
2026-09-18T19:47:30Z
Modified
2026-10-28T02:30:50Z
Severity
  • 8.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
pg_partman SQL injection in undo partition time encoder
Details

pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, undo_partition() reads part_config.time_encoder as unrestricted text and interpolates it without identifier quoting into a dynamically executed SELECT statement. A role with partman_user access can store SQL rather than a function name, and the SQL executes with the privileges of the caller that invokes undo_partition(). The function is not part of the default background-worker path, which limits the automatic superuser escalation described by the related create-partition vulnerability, but a privileged caller can still have its available confidentiality, integrity, and availability permissions abused. This issue is fixed in version 5.5.0.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-89"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61818.json"
}
References

Affected packages

Git / github.com/pgpartman/pg_partman

Affected ranges

Type
GIT
Repo
https://github.com/pgpartman/pg_partman
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f7e83b9c441c7e97066d815bbe14e02a9dc5ff94
Fixed
ba9405542acf24dd881845b935cab8b165854361
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "5.5.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "ba9405542acf24dd881845b935cab8b165854361"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v5.5.0",
            "range":  [
                {
                    "fixed":  "f7e83b9c441c7e97066d815bbe14e02a9dc5ff94"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

v0.*
v0.1.1
v0.1.2
v0.2.0
v0.3.0
v0.3.1
v0.3.2
v0.4.0
v0.4.1
v0.4.2
v1.*
v1.0.0
v1.1.0
v1.2.0
v1.3.0
v1.4.0
v1.4.1
v1.4.3
v1.4.4
v1.4.5
v1.5.0
v1.5.1
v1.6.0
v1.6.1
v1.7.0
v1.7.1
v1.7.2
v1.8.0
v1.8.1
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.8.6
v1.8.7
v2.*
v2.0.0
v2.1.0
v2.2.0
v2.2.1
v2.2.2
v2.2.3
v2.3.0
v2.3.1
v2.3.2
v2.3.3
v2.3.4
v2.4.0
v2.4.1
v2.5.0
v2.5.1
v2.6.0
v2.6.1
v2.6.2
v2.6.3
v2.6.4
v3.*
v3.0.1
v3.0.2
v3.1.0
v3.1.1
v3.1.2
v3.1.3
v3.2.0
v3.2.1
v4.*
v4.0.0
v4.1.0
v4.2.0
v4.2.1
v4.2.2
v4.3.0
v4.3.1
v4.4.0
v4.4.1
v4.5.0
v4.5.1
v4.6.0
v4.6.1
v4.6.2
v4.7.0
v4.7.1
v5.*
v5.0.0
v5.0.1
v5.1.0
v5.2.0
v5.2.1
v5.2.2
v5.2.3
v5.2.4
v5.3.0
v5.3.0RC1
v5.3.1
v5.4.0
v5.4.1
v5.4.2
v5.4.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61818.json"